Go Math Science

Algebraic Notations and Symbolic Structures

by Dr. Osama M. Khaled — published May 23, 2026 — last modified May 23, 2026 08:36 AM — filed under: Year 7, Year 8, Year 9, Year 10

Induction, Notation, Expressions, and Identities

Located in Mathematics / Calculus / From Arithmetic to Algebra

Application problems with unknowns

by Dr. Osama M. Khaled — published Dec 02, 2023 — last modified Jul 12, 2024 10:17 PM — filed under: Year 8

Solve application problems to find one unknown

Located in Mathematics / Algebra / Equations to Solve Application Problems

Asexual Reproduction

by Dr. Osama M. Khaled — published Jun 17, 2026 — last modified Jun 17, 2026 07:36 PM — filed under: Year 8, Year 11

This quiz covers budding, fragmentation, parthenogenesis, cloning, vegetative reproduction, spores, and the genetic-variability trade-off of asexual vs. sexual ...

Located in Biology / Reproduction

Atoms in a solid

by Dr. Osama M. Khaled — published Jul 24, 2024 — last modified Jul 25, 2024 11:08 AM — filed under: Year 8

When matters is in a solid state, its atoms or molecules are arranged in definite, fixed patterns

Located in Physics / Solids

Calculate commissions and commission rates

by Dr. Osama M. Khaled — published Dec 13, 2024 — last modified May 12, 2025 06:14 AM — filed under: Year 7, Year 8, Year 9

Instead of working for a salary or getting paid at an hourly rate,many salespeople are paid on commission.They earn a certain percent of the total dollar ...

Located in Mathematics / … / Percent / Applications of Percent

Calculate sales taxes, total cost, and tax rates

by Dr. Osama M. Khaled — published Aug 11, 2024 — last modified Aug 24, 2024 09:17 PM — filed under: Year 8

Calculating sales taxes, total cost, and tax rates are important concepts to understand receipts and invoices while shopping.

Located in Mathematics / … / Percent / Applications of Percent

Calculate the amount of discount the sale price, and the discount rate

by Dr. Osama M. Khaled — published Feb 21, 2025 — last modified May 12, 2025 06:19 AM — filed under: Year 6, Year 7, Year 8

Learn the vocabulary of discount sales to be a smart shopper

Located in Mathematics / … / Percent / Applications of Percent

Cell Division Review

by Dr. Osama M. Khaled — published Jun 16, 2026 — last modified Jun 16, 2026 06:25 PM — filed under: Year 8, Year 9, Year 11, Year 12

Comprehensive mixed quiz spanning binary fission, mitosis, and meiosis

Located in Biology / Cell Division

Cell membrane

by Dr. Osama M. Khaled — published Jul 17, 2022 — last modified Jul 13, 2024 10:18 PM — filed under: Year 8

Cell Membrane provides cell protection

Located in Biology / Cell Structure

Cell Size and Measurement

by Dr. Osama M. Khaled — published Jun 14, 2026 — last modified Jun 14, 2026 04:44 AM — filed under: Year 8

This quiz covers the range of cell sizes (0.5–40 microns), comparisons between cell types (neurons, ostrich egg, red blood cells), and unit conversions between ...

Located in Biology / Cell Structure

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